Question

tìm y :   

a y + y/3 = 24                                          (4 1/5 - y )  x 1 1/14 = 9/14 + 3/7

 

Answer 1

a) \(y+\frac{y}{3}=24\)

\(y\cdot\left(1+\frac{1}{3}\right)=24\)

\(y\cdot\frac{4}{3}=24\)

y = 18

Answer 2

b) \(\left(4\frac{1}{5}-y\right)\cdot1\frac{1}{14}=\frac{9}{14}+\frac{3}{7}\)

\(\left(\frac{21}{5}-y\right)\cdot\frac{15}{14}=\frac{15}{14}\)

21/5  - y = 1

y = -16/5

Answer 3

\(y.\left(1+\frac{1}{3}\right)=24\)

\(y.\frac{4}{3}=24\)

\(y=24:\frac{4}{3}\)

\(y=18\)